This paper chooses ROI by constant false alarm ratio (CFAR) detector, then compresses the image by JPEG2000 algorithm.
该文根据恒虚警率(CFAR)检测器确定roi区域,利用JPEG2000算法进行压缩。
The experiment results show that the algorithm has good error feature and the compression efficiency is slightly lower than that of JPEG-LS and JPEG2000.
实验结果表明,本算法具有很好的抗误码性能,压缩效率比JPEG-LS和JPEG2000略有下降。
After the analysis of the updating condition for index table and probability interval, an optimized algorithm based on partial parallel scheme was presented for arithmetic encoder(AE) in JPEG2000.
通过对索引表和概率间隔区间更新条件的分析,提出了一种JPEG2000算术编码器的部分并行优化算法。
The JPEG2000 standard's formulation further impels the image compression algorithm research.
JPEG2000标准的制定进一步推动了图像压缩算法的研究。
The image coding and compression technologies based on the JPEG2000 standard is studied in this article, which focus on region-of-interest (ROI) compression and EBCOT optimization algorithm.
本文主要基于JPEG2000标准来研究图像编码和压缩相关技术,其重点是感兴趣区域(ROI)的压缩和EBCOT算法的优化。
Using 5-level CDF9/7 2-D discrete wavelet transform recommend in the standard of JPEG2000, the multiplication operation for scaling in the algorithm is decreased by 34.
实验中以CDF 9/7二维离散小波变换为例,对于JPEG 2000中推荐使用的5级小波分解,本文算法相对于原空间组合推举算法的缩放运算乘法量减少了34。
Through analyzing the core algorithm of the JPEG2000, this paper describes the image compression process and the advantages of the JPEG2000 compared with the previous standards.
通过对JPEG2000中核心算法的分析,阐述了JPEG2000压缩过程以及与现有压缩标准相比显示出来的优越性能。
At the same time, this method had not any request to decodes, had used the JPEG2000 core code algorithm, has more advantageous to the realization and the maintenance compatibility.
同时,该方法对解码端没有任何要求,利用了JPEG2000的核心编码算法,更有利于实现和保持兼容性。
An adaptive watermark algorithm based on JPEG2000 is proposed in this paper.
提出一个基于JPEG2000的自适应水印算法。
This paper analyzes the structure, features and coding algorithm of JPEG2000, and illustrates the JPEG2000 based on some comparisons with JPEG.
本文对JPEG2000系统的结构、特性以及其编码算法进行了分析,并给出JPEG2000与原JPEG标准的性能比较。
As an important part of JPEG2000, EBCOT algorithm performs the scanning 3 times in each bit plane and codes all coefficients in 3 coding passes, wasting lots of operation time.
EBCOT是JPEG2000系统中占运算时间最多的组成部分,它对每个位平面进行三次扫描、进行三个编码通道的编码操作,浪费了大量的运算时间。
The MQ coder is adopted in JPEG2000. In EBCOT algorithm, the tiles, code-block, bit-plane all can be implemented using parallel structure.
同时,在JPEG 2000中基于子带、码块和比特平面的编码都可以并行实现。 因此,MQ编码器的效率就成了JPEG 2000硬件高速实现需要解决的关键问题。
The results indicate the compression performance of the proposed algorithm is better than that of JPEG2000, especially at low bit-rate compre…
实验数据表明该算法的压缩能力优于JPEG2000,尤其适于低码率压缩。
Combine the proposed method with JPEG2000, and set the parameters according to JPEG2000 Standard, we get an algorithm called Adaptive Trellis Coded Quantization (ADTCQ).
将上述方法与JPEG2000图像编码标准结合,按照JPEG2000中的要求对量化参数进行了限定,得到了自适应网格编码量化算法(ADTCQ)。
A fast rate control algorithm based on Steepest-Descent (SD) was proposed for JPEG2000.
研究实现了基于最速下降法(SD)的JPEG2000率控制方法。
A fast rate control algorithm based on Steepest-Descent (SD) was proposed for JPEG2000.
研究实现了基于最速下降法(SD)的JPEG2000率控制方法。
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